Hf4 Si4 Rh4

semiconductor
· Hf4 Si4 Rh4

Hf4Si4Rh4 is an experimental intermetallic compound combining hafnium, silicon, and rhodium in a 1:1:1 ratio, belonging to the quaternary metal-semiconductor family. This research-phase material is being investigated for high-temperature structural and electronic applications where the combination of refractory metal stability (hafnium), silicon's semiconducting properties, and rhodium's catalytic/thermal characteristics could offer novel performance. While not yet in widespread commercial use, materials in this composition space are of interest to researchers developing next-generation aerospace components, integrated catalytic systems, and extreme-environment semiconductors that demand simultaneous mechanical rigidity and thermal stability beyond conventional binary or ternary systems.

aerospace high-temperature componentsresearch semiconductorsextreme-environment materialsintegrated catalytic systemsrefractory metal applicationsadvanced electronics research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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ksi——
Shear Modulus(G)
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ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
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eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.
Hf4 Si4 Rh4 — Properties & Data | MatWorld